My personal answer is that if you want to succeed in software development you need both, as you need creativity and method

Talk soon,
Francesco

1. IQ is based on very narrow tests, which bear little resemblance to real life
2. The study speaks of GPA and academic (in-school) performance, which also are not real life

Software development, or to use simple, old-fashioned words, programming, is a craft or sport. Like playing a musical instrument, or swimming competitively. Nobody would ever ask a violinist or a swimmer about IQ.

Self-discipline is it. (Note that this is not “discipline” in the misused but popular sense of “doing only what you’re told”. Don’t think army. Think Tai Chi.)

Of course being smart matters. But I’d limit “smart” to “genetically wired in favor of a particular activity”. I happen to be wired that way for math, languages, programming. But that head start probably just helped me with some early positive feedback. The rest of what I’ve learned comes from self-discipline, or “stick-to-it-iveness”.

Visible results comes from skill.

And skill comes by learning from experience, and from practice, both of which require … self-discipline.

Even risk-taking and creativity can be traced to self-discipline, through conquering fear of failure.

The problem with discipline is that if you are too disciplined you won’t be able to think out of the box. You will be too rigid in your thought process. However, having the discipline to not let something beat you is definitely a good trait in my book.

I don’t know if there is a correlation between smartness and IQ, but some of the best people that i worked with were very smart in the sense of problem solving and gtd…

1) Smart
2) Gets Things Done

I tend to agree that the best developers have both qualities, but I definitely think self-discipline is the more important of the two.